🎯 ONE SHOT — L-MR-POSTRUN · Retrieve matrix_samples.jsonl from Railway runner + commit-back to main

[gHashTag]

Parent / cross-refs

• Sibling to #588 L-MR-MATRIX-PRIORITY (runner + priority CSV · merged via #589 → 6cf0b5bd)
• Railway dispatch: #588 issuecomment-4408024832
• Throne: #264
• Downstream: #446 Erratum — honest verdict cannot land until JSONL lives on main.

Mission

Railway service trios-mr-priority-runner (71f5aac2-d4d5-4640-8895-90ced5d4ea63, IGLA project) appends honest samples to assertions/matrix_samples.jsonl inside the container. Current TS runner has NO commit-back logic → file is stranded. This lane delivers the retrieval + commit-back path so closure_gate_priority.py can actually render an R7 verdict.

Acceptance (R7-witness)

• Every honest row produced by trios-mr-priority-runner lands on main in assertions/matrix_samples.jsonl
• Append-only protocol preserved — no rewrites of pre-existing rows (incl. the original 20 Git-canonical rows)
• Each retrieved row carries source: "railway-priority-2026-05-08" tag for provenance
• closure_gate_priority.py run against final main HEAD → exit 0 on priority 50-cell subset (OR honest FAIL published, R5)
• Honest verdict posted as comment on closed #446 (NOT reopened — R10 content delta check)
• R3 PR-only, no --admin, author Dmitrii Vasilev <admin@t27.ai>
• Forbidden seeds {42, 43, 44, 45} absent from appended rows (whitelist {47, 89, 144})

3 sub-lanes (sequential — T1 blocks T2, T2 blocks T3)

Lane	Target	Owner skill
L-MR-POSTRUN-T1	Retrieval mechanism — choose + implement ONE of: (a) sidecar gh api PUT /contents/... inside service at EOJ; (b) railway logs stdout capture + parser (if runner prints each row); (c) volume-mount + pull via railway run cat. Deliverable: scripts/fetch_matrix_samples.ts + wiring in runner if (a)	tri-gardener-runbook
L-MR-POSTRUN-T2	Commit-back orchestrator — PR with appended JSONL rows. Validate schema per row ({format, algo, seed_phi, step, bpb, sha, source, timestamp}), dedup against existing file (idempotent), signed author admin@t27.ai. Branch: feat/l-mr-postrun-t2-jsonl-append	coq-runtime-invariants
L-MR-POSTRUN-T3	Honest verdict publication — run python3 .github/scripts/closure_gate_priority.py --json against merged main HEAD, post structured verdict comment on #446 with <!-- closure_gate_priority:verdict --> marker. If verdict=PASS, also update #446 Erratum marker with resolution note	phd-monograph-auditor

T1 decision criteria (retrieval path)

Queen preference ordering:

1. (a) sidecar PUT — cleanest, runner self-commits. Requires mutating runner (retouch feat(matrix): L-MR-MATRIX-PRIORITY — 50-cell priority subset + local runner (closes #588) #589 via hot-patch PR). R10 risk: couples runner to git creds.
2. (c) volume pull — cleanest isolation, requires Railway volume mount config. May need extra deploy.
3. (b) stdout parse — most fragile, requires each row emitted to stdout in parseable form. Lowest code footprint if runner already prints.

L-MR-POSTRUN-T1 claimant decides + documents rationale in PR. Queen reserves veto.

Anti-strategy (forbidden)

• ❌ --admin merge bypass
• ❌ Overwrite existing 20 canonical rows in JSONL (append-only)
• ❌ Reopen 🌻 EPIC — E2E TTT Pipeline O(1) · Ring-Pattern Refactor (3 GOLD × ~19 SR) #446 before T3 verdict lands on main
• ❌ Use forbidden seeds {42, 43, 44, 45}
• ❌ Synthetic stubs (wallclock_ms=0, step=0 for non-convergent runs) — mark as status: "non_convergent" per L-MR-MATRIX-PRIORITY: 50-cell priority subset + local runner for R7-honest closure #588 L3 spec and exclude from honest gate
• ❌ Skip schema validation (all 8 fields required per row)

Railway context (read-only info for claimant)

• Service: trios-mr-priority-runner ID 71f5aac2-d4d5-4640-8895-90ced5d4ea63
• Project: IGLA e4fe33bb-3b09-4842-9782-7d2dea1abc9b
• Image: ghcr.io/ghashtag/trios-trainer-igla:latest
• ETA runner completion: ~12.5 h CPU wall-clock from 2026-05-08T16:27:23Z → ~2026-05-09T05:00Z
• Env: SEEDS=47,89,144, STEPS=3000, CPU_ONLY=1, SOURCE_TAG=railway-priority-2026-05-08

Timing

T1 can claim immediately (do not wait for Railway EOJ — implement sidecar and redeploy service).
T2 claims after T1 PR merged.
T3 claims after T2 PR merged AND closure_gate_priority.py has non-empty JSONL to gate.

Anchor

phi^2 + phi^-2 = 3 · DOI 10.5281/zenodo.19227877
R3 PR-only · R5 honest · R7 witness · R10 atomic · CPU-only · Seeds {47, 89, 144}

[gHashTag]

🚨 Seed canon erratum

This issue body references SEEDS={47, 89, 144} — incomplete canon. Full canon is {47, 89, 144, 123} (2 Lucas + 2 Fibonacci). Original body left unchanged (R10: history immutable).

Resolution tracked in #600 L-SEED-CANON. Running Railway service hot-patched 2026-05-08T16:34:01Z.

Anchor

phi^2 + phi^-2 = 3 · DOI 10.5281/zenodo.19227877

[gHashTag]

👑 QUEEN ORDER — L-MR-POSTRUN-T1 claim NOW

Railway service trios-mr-priority-runner (71f5aac2) is running RIGHT NOW (ETA ~2026-05-09T05:00Z). T1 MUST beat that deadline — otherwise JSONL is stranded.

Queen-preferred path: (a) sidecar PUT

• Edit scripts/run_priority_matrix.ts — at EOJ, use GH_TOKEN env + POST /repos/gHashTag/trios/issues/<PARENT_ISSUE>/comments with the JSONL delta as attachment comment, AND open a PR via gh pr create committing appended rows to assertions/matrix_samples.jsonl
• Branch: feat/seed-canon-postrun-t1-sidecar (coordinate with L-SEED-CANON-L1)
• Add GH_TOKEN env var to Railway service (queen will inject before redeploy)
• Container must have gh CLI — if not in image, add apt-get install gh or use curl with GH REST API
• Author enforced in container: git config user.email admin@t27.ai && git config user.name "Dmitrii Vasilev"
• R10 atomic: one commit = one row batch from EOJ, not per-seed

Fallback: (c) stdout parse

If image is locked and cannot add gh, then runner MUST print each JSON row to stdout in single-line form, and T1 delivers scripts/fetch_matrix_samples.ts that parses railway logs 71f5aac2 output.

Honesty rules

• NO --admin merge bypass
• Author: Dmitrii Vasilev <admin@t27.ai> (verify BEFORE push)
• R3 PR-only
• Seeds MUST be from canon {47, 89, 144, 123} — reject any row with forbidden {42, 43, 44, 45} per L-SEED-CANON

Coordinate with L-SEED-CANON-L1

Both lanes touch scripts/run_priority_matrix.ts. Either:

• Option A: single PR covering L-SEED-CANON-L1 + L-MR-POSTRUN-T1 (atomic)
• Option B: L1 merges first (smaller diff), T1 rebases

Queen ruling: Option A preferred for R10 atomicity. Claim BOTH lanes if you take either one.

ETA

~2-3 h work · CLAIM NOW · Greek codename ANY

Anchor

phi^2 + phi^-2 = 3 · DOI 10.5281/zenodo.19227877